Fastening device for insulators



March 16 1926.

- L. C. REED FASTENING DEVICE FOR INSULATORS Filed May 1 1924 Patented Mar. 16, 1926.

UNITED STATES.

PATENT oFF c-E.

LmN C. REED, OF ORLEANS. LOUISIANA, A SSIGNOR TO J OSLYN MANUFAC- TURING & SUPPLY COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

FASTENING DEVICE FOR INSULATORS.

' Application filed May 1,

T all whom it may concern Beit known that I, LYMAN C. REED, a citizen of the United States, residing at New Orleans, in the parish of Orleans and State of Louisiana, have invented certain new and useful Improvements in Fastening Devices for Insulators; and I do hereby declare the following to .be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeand use the same.

' .This invention relates to fasteners capable of general use, but especially adapted for securing insulator members to racks and other places, and has for its object to, improve the devices of this character which have been heretofore proposed. v

With these and other objects in view, the invention consists in the novel details of construction and combinations of parts more fully hereinafter disclosed and particularly pointed out in the claims. 1

Referring to the accompanying drawings, forming a part .of this specification, in which like numerals designate like parts in all the views Figure 1 is a top plan view of an insulator rack with my invention applied thereto;

Figure 2 is abottom lan view of a por tion of the parts shown 1n Figure 1;

Figure 3 1s a sectional view taken on the lines 33 of Figure 1, looking in the direction of the arrows; h v Figure 4 is a perspective view of the parts shown in Figure 2. e I 1 indicates any suitable supporting base or rack, preferably comprising a metal plate 2 having the turned-up flanges 3, as. shown. Said plate ortion 2 is provided withv a pluralityofb long-shaped apertures or holes 4 having tlie side edges 5, and from said edges are prefer'ablystruck one or more projec-' tions 6, as best shown in Figure 4. From I a said. edges"5 are also struck up projections 7 of less height and dimensions than the projections 6. The said plate 2 is further provided with holes or perforations 8 through which suitable fastening means, not shown, may be passed to secure the rack 1 in place. 0 10 represents any suitable or desired form of insulator provided with means such as the aperture 11, for supporting a wire, and 12 represents a screw-threaded tube or bushing which is suitably secured in said insulator 10, as by cementing the same. Fitting in 1924. .scrial'No. 710,401.

said screw-threaded bushing 12 is the screwshaped opening 4 with which the rack 1 is' provided. A spring washer or other locking means. 17 through which said shank 13 surface'18 ofthe insulator 10 and the top flat surface of the plate member 2, as best illustrated in Figure 3.

The operation of my improved fastener is as follows: The-rack member 1 is secured to any suitable support 20 by means of fastening members, not shown, passing through the holes 8, and when it is desired to secure an insulator 10 to said rackmember 1, the shank .13 of the bolt 14 is screwed into the passes, is disposed between the lower flatbushing 12 for a portion of its length, whereupon the key member 15 is passed down through one of the oblong holes 4. The

depth of the flanges 3 is ofsuchdimensions that the extreme surface 21 of the key member 15 will strike-the outer surface of the the said outer-surface and the extreme end of the lug 7 for a purpose that will presently appear. Theinsulator member 10'may now be rotated, which will screw up on the screwthreaded extension 13, thus drawing the key member 15 toward the plate member 2, while at the same time rotatlng said key member 15 to a greater or less extent. During this rotation, as will be readily seen from Figures 3 and 4, the key member 15, due to the dimensions above mentioned may pass over the extreme end portion of the lugs 7, which are shorter than the lugs 6, and thus approach the lugs orprojections 6, until it contacts therewith. When this happens, the. key member will beheld stationary, and the continued rotation of the insulator 10 will 17 contacts with the top surface of the plate cured tosaid surface; a pair of lugs 10' ed. a, i rim iselaimed ise portion 2. This action will continue until the key member 15 is brought into contact tinued turning of the insulator will cause the washer to contact with the outer surface of theplate portion. As the insulator .10 continues to turn, the pressure of the washer or looking member 17 increases, until finally the key member 15 will snap over the shorter lug 7 and snap into lace between each pair of lugs 6and 7, as illustrated in Figure v4:, whereupon a continued turning of the insulator "10 will lock the parts firmly in place, due to the compression of the locking spring 17. The whole 0 eration only requires a very short time an so firmly anchors the msulator 10 to the holding rack 1 that it-needs no further attention. Thewires to bevsupported can then be hung upon the 1nsulators 10 as in any other ordinary fastening means. When it is desired to remove the insulators from the racks 1, it is.only necessary toreverse the rotation of said insulators 10,

whereupon thescrew-threaded shank 13 will.

be disengaged from the bushing 12 and the said ke members and shank can be removed throu lithe aperturesA;

In i'gure 1, provision -lS made. for three insulators, but it evident that a ater or less number can be readily su' phed. The rack members 1 are conveme'n y'struck up by suitable dies and the m G-and 7 are conveniently formed during same opera- 'tion, although, of course, said lugs may be of different P e -a I 4 is further evident that the utility-of the fastening means is b no means limited toimited tea rack me'minsulators. "mes-11s I ber of a shape design Illustrated; 'In' fact, any-aperture in a'supportm surface,

that isadapted-tointerlock-witha ey mem ber such .as 15., could l6yed,and any suitable stop member q' g idl r w a 'l, and' ny sultableinuifi a insulators the combination of a sugeport Rrovided awith a surface;- a base mem r having an aperture o ferent lengths associated-with said aperture 1. .In af rack fo forms and may be otherwise wi i and projecting from said base 'member toward said surface; a key member adapted to pass throu h said aperture having a thickness less t an the distance between the extreme end of the shorter of said ln s and said surface and 'greaterthan the distance between the extreme endof the'longer one of said pair of lugs and said surface; and an insulator adjustably connected with said key member.

2. In a rack for insulators the combination of a support provided with a surface; a base member havin an aperture and secured to said surface; a pair of lugs of different lengths associated with said aperture and projecting from said base i member toward said surface; a key member adapted to pass through said aperture having a thick ness less than the distances between the extreme end of the -shorter of said ln s and said surface and greater than the distance between the extreme end of the longer one of said pair of lugs and said surface; an msulator adjustably connected with said-key member; and means to retain said insulatorand key member in locked relation. to said base. f

3... In a fastening device the combination of abase member having an aperture and rovided with angularly disposed flan e'sw ose free ends are adapted to contact wit the surface of a 'wall;-a pair of lugs of different lengths associated with said aperture and projecting from said base member toward th'eplane of the ends of said flanges; a key member adapted to pass through said ape'rhim having a thickness less than the distance between the extreme end of the shorter of sa1d lugs and said plane and greater than the distance between the extreme 'endof the" longer one of said pair oflugs and said plane; and means for maintaining said key member in locked relation to saiddgase. 4. In a fastemng device the combination of a base member having an aperture and pro- 'vided with a plurality of flanges whose free ends are adapted to contact with the surface ofa wall; a pair of lugsof different len hs associated with said aperture and pro ecting from said base member toward the plane passing through the free ends of said flanges and coinciding with said surface; 'a key member adapted pass through said, aperture; having a thickness less than thedis-- tance between the extreme end of the shorter of sald-lugs and said plane and greater than longer one .of said, pair of. lugs and said plane; and threaded means toretain said ature.

' the distancebetween the extreme end of the 

